Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5396814 | Method of hot tapping a pipe for installing ionic flowmeter transducers | Dennis H. Tuttle, Larry T. Riley | 1995-03-14 |
| 4969362 | Dual element transducer | Ellis M. Zacharias, Jr., Lawrence T. Riley | 1990-11-13 |